[R] Plot bar lines like excel

[abotaha]

Hello guys, 

I would to plot a bar line between to curves like in excel as shown in the
following image. but i do not know how I can do that in R. 
http://r.789695.n4.nabble.com/file/n2337089/excel_Plot.png 
any help would appreciate. 

-- 
View this message in context: http://r.789695.n4.nabble.com/Plot-bar-lines-like-excel-tp2337089p2337089.html
Sent from the R help mailing list archive at Nabble.com.